com.aspose.cells

Class DigitalSignature

java.lang.Object

com.aspose.cells.DigitalSignature

public class DigitalSignature
extends java.lang.Object

Signature in file.

Constructor Summary

Constructors

Constructor and Description
DigitalSignature(java.security.KeyStore certificate, java.lang.String privateKeyPassword, java.lang.String comments, DateTime signTime) Constructor of digitalSignature.

Method Summary

Methods

Modifier and Type	Method and Description
java.security.KeyStore	getCertificate() Certificate object that was used to sign the document.
java.lang.String	getComments() The purpose to signature.
java.util.UUID	getId() Specifies a GUID which can be cross-referenced with the GUID of the signature line stored in the document content.
byte[]	getImage() Specifies an image for the digital signature.
java.util.UUID	getProviderId() Specifies the class ID of the signature provider.
DateTime	getSignTime() The time when the document was signed.
java.lang.String	getText() Specifies the text of actual signature in the digital signature.
int	getXAdESType() XAdES type.
boolean	isValid() If this digital signature is valid and the document has not been tampered with, this value will be true.
void	setCertificate(java.security.KeyStore value) Certificate object that was used to sign the document.
void	setComments(java.lang.String value) The purpose to signature.
void	setId(java.util.UUID value) Specifies a GUID which can be cross-referenced with the GUID of the signature line stored in the document content.
void	setImage(byte[] value) Specifies an image for the digital signature.
void	setProviderId(java.util.UUID value) Specifies the class ID of the signature provider.
void	setSignTime(DateTime value) The time when the document was signed.
void	setText(java.lang.String value) Specifies the text of actual signature in the digital signature.
void	setXAdESType(int value) XAdES type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DigitalSignature

public DigitalSignature(java.security.KeyStore certificate,
                java.lang.String privateKeyPassword,
                java.lang.String comments,
                DateTime signTime)

Constructor of digitalSignature.

Parameters:

certificate - Certificate object that was used to sign the document.

privateKeyPassword - The password for private key.

comments - The purpose to signature.

signTime - The utc time when the document was signed.

Method Detail

getCertificate

public java.security.KeyStore getCertificate()

Certificate object that was used to sign the document.

setCertificate

public void setCertificate(java.security.KeyStore value)

Certificate object that was used to sign the document.

getComments

public java.lang.String getComments()

The purpose to signature.

setComments

public void setComments(java.lang.String value)

The purpose to signature.

getSignTime

public DateTime getSignTime()

The time when the document was signed.

setSignTime

public void setSignTime(DateTime value)

The time when the document was signed.

getId

public java.util.UUID getId()

Specifies a GUID which can be cross-referenced with the GUID of the signature line stored in the document content. Default value is Empty (all zeroes) Guid.

Remarks

When set, it associates SignatureLine with corresponding DigitalSignature.

setId

public void setId(java.util.UUID value)

Specifies a GUID which can be cross-referenced with the GUID of the signature line stored in the document content. Default value is Empty (all zeroes) Guid.

Remarks

When set, it associates SignatureLine with corresponding DigitalSignature.

getText

public java.lang.String getText()

Specifies the text of actual signature in the digital signature. Default value is Empty.

setText

public void setText(java.lang.String value)

Specifies the text of actual signature in the digital signature. Default value is Empty.

getImage

public byte[] getImage()

Specifies an image for the digital signature. Default value is null.

setImage

public void setImage(byte[] value)

Specifies an image for the digital signature. Default value is null.

getProviderId

public java.util.UUID getProviderId()

Specifies the class ID of the signature provider. Default value is Empty (all zeroes) Guid.

Remarks

The cryptographic service provider (CSP) is an independent software module that actually performs cryptography algorithms for authentication, encoding, and encryption. Microsoft Office reserves the value of {00000000-0000-0000-0000-000000000000} for its default signature provider, and {000CD6A4-0000-0000-C000-000000000046} for its East Asian signature provider. The GUID of the additionally installed provider should be obtained from the documentation shipped with the provider.

setProviderId

public void setProviderId(java.util.UUID value)

Specifies the class ID of the signature provider. Default value is Empty (all zeroes) Guid.

Remarks

The cryptographic service provider (CSP) is an independent software module that actually performs cryptography algorithms for authentication, encoding, and encryption. Microsoft Office reserves the value of {00000000-0000-0000-0000-000000000000} for its default signature provider, and {000CD6A4-0000-0000-C000-000000000046} for its East Asian signature provider. The GUID of the additionally installed provider should be obtained from the documentation shipped with the provider.

isValid

public boolean isValid()

If this digital signature is valid and the document has not been tampered with, this value will be true.

getXAdESType

public int getXAdESType()

XAdES type. Default value is None(XAdES is off).

See XAdESType.

setXAdESType

public void setXAdESType(int value)

XAdES type. Default value is None(XAdES is off).

See XAdESType.